Home / 218,859.18-302,083.02-142,587.60

Finding the Fourth Proportional to 218,859.18, 302,083.02 and 142,587.60

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Solution

The fourth proportional to 218,859.18, 302,083.02 and 142,587.60 is: 196,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,859.18 : 302,083.02 = 142,587.60 : x
  2. Step 2: Convert to fraction form
    218,859.18/302,083.02 = 142,587.60/x
  3. Step 3: Cross multiply
    218,859.18x = 302,083.02 × 142,587.60
  4. Step 4: Simplify right side
    218,859.18x = 43,073,292,822.55
  5. Step 5: Solve for x
    x = 43,073,292,822.55/218,859.18
  6. Step 6: Final answer
    x = 196,808.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.